{"data":{"schemaVersion":"realm.temporal-relationships.v1","temporalSemantics":{"validTime":{"granularity":"date","bounds":"inclusive","nullStart":"start date not published in the upstream history row","nullEnd":"open-ended in the upstream history row; not independent proof of present control"},"transactionTime":{"observedAt":"2026-10-17T05:35:58.500035+00:00","meaning":"time the checksum-addressed MDRS artifacts were observed by the PostgreSQL ingestion"},"derivation":{"controllerControlsOperator":"intersection of controller and operator valid-time intervals evidenced through this mine","currentIdentity":"current controller and operator are asserted only by the MDRS Mines snapshot"}},"current":{"mine":{"type":"mine","id":"3401247","name":"WASHITA PITS"},"operator":{"type":"operator","id":"L18034","name":"Washita County"},"controller":{"type":"controller","id":"M13757","name":"Washita County-OK"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L10270","name":"Milpark Drilling Fluids"},"object":{"type":"mine","id":"3401247","name":"WASHITA PITS"},"validFrom":"1980-01-01","validTo":"2000-10-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3401247|L10270|1980-01-01|2000-10-09"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00217","name":"Baker Hughes Inc"},"object":{"type":"mine","id":"3401247","name":"WASHITA PITS"},"validFrom":"1980-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3401247|M00217|1980-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00217","name":"Baker Hughes Inc"},"object":{"type":"operator","id":"L10270","name":"Milpark Drilling Fluids"},"validFrom":"1980-01-01","validTo":"2000-10-09","current":false,"derived":true,"evidenceMineId":"3401247","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3401247|L10270|1980-01-01|M00217|1980-01-01|107558"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L18034","name":"Washita County"},"object":{"type":"mine","id":"3401247","name":"WASHITA PITS"},"validFrom":"2000-10-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3401247|L18034|2000-10-10|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M13757","name":"Washita County-OK"},"object":{"type":"mine","id":"3401247","name":"WASHITA PITS"},"validFrom":"2000-10-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3401247|M13757|2000-10-10|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M13757","name":"Washita County-OK"},"object":{"type":"operator","id":"L18034","name":"Washita County"},"validFrom":"2000-10-10","validTo":null,"current":true,"derived":true,"evidenceMineId":"3401247","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3401247|L18034|2000-10-10|M13757|2000-10-10|157028"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3401247","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}